How much is there in the full game? And is there any more planned content? Demo is really fun and interesting

Are you planning to add more languages? I can help with Russian, French and Ukrainian.

It's just frustrating to draw what i want to. The Eraser needs to be able to erase just parts of the line. Basically take a look at what MS Paint does and replicate it. Otherwise the concept is very interesting.

我不知道所有测试必须按顺序出现是否是作者真实意图的一部分，但这实在让“程序”测试变得十分困难。能否至少让玩家可以单独运行曾经到达过的Case？例如如果我的设计在Case 3中失败了，我希望我至少可以单独运行Case 1，2，3中的任意一个。同时我想游戏能否提供每个测试图形，或者至少是已通过和正在挑战的测试图形的初始下落位置？我感觉本作作为一款解谜游戏，我在游玩时...

love the concept and demo. Please add a snap to grid function and mirror along axis function! it would also be nice to draw "intangible" lines that don't collide with objects for more complex mechanisms. EDIT: after experimenting with the game more I have found some of the physics are not fully deterministic. Test cases can give different results then run cases. This is obviously a pretty bad problem, so I hope that gets fixed...